package lwt

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Promises and event-driven I/O

Install

dune-project
 Dependency

Authors

Maintainers

Sources

6.0.0-alpha00.tar.gz
md5=8a88c5d5fcb01d179bbb12e6b6888dca
sha512=bfecd3fa0a3461a3368bd7724e2fce7a751ba3899d590d5b08bc4257b058ca34ec25de1a3ead6585528afe77c6ca6db1c3e2d2421d6a773c845ef091472d2ed9

doc/lwt.unix/Lwt_throttle/Make/index.html

Module Lwt_throttle.MakeSource

Parameters

Signature

Sourcetype key = H.t
Sourcetype t
Sourceval create : rate:int -> max:int -> n:int -> t

Creates a rate limiter.

  • parameter rate

    Maximum number of promise resolutions per second, per channel.

  • parameter max

    Maximum number of pending promises allowed at once, over all channels.

  • parameter n

    Initial size of the internal channel hash table. This should be approximately the number of different channels that will be used.

Sourceval wait : t -> key -> bool Lwt.t

Lwt_throttle.wait limiter channel returns a new promise associated with the given rate limiter and channel.

If the maximum number of pending promises for limiter has not been reached, the promise starts pending. It will be resolved with true at some future time, such that the rate limit of limiter is not exceeded, with respect to other promises in the same channel.

If the maximum number of pending promises has been reached, the returned promise is already resolved with false.

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